bullpen Syllabification: (bull·pen)Pronunciation: /ˈbo͝olˌpen/Definition of bullpen noun (also bull pen) an enclosure for bulls. an exercise area for baseball pitchers. the relief pitchers of a baseball team. an open-plan office area. a large cell in which prisoners are held before a court hearing. bullpen in other Oxford dictionaries Definition of bullpen in the British & World English dictionary
